Attachment 7 - Acoustic Report

                                                      Rw Ratings                           QDC Glazing




                                                                                                          Acoustic seals
                                                                     Entry door
                                                          Glazing*




                                                                                               Glazing*
                                                                                  Floors
                                  QDC




                                                   Roof
                                            Wall
          Lot        Level
                                Category

                        First         1        35     35    27    28     -             4mm float            yes
        216-229       Ground          0         -      -     -     -     -             4mm float            no
                        First         0         -      -     -     -     -             4mm float            no
        230-232       Ground          0         -      -     -     -     -             4mm float            no
                        First         1        35     35    27    28     -             4mm float            yes
*If the total glazing area of a habitable room (living areas/bedrooms) is less than 1.8m2, glazing with minimum Rw 24
(4mm float with standard weather seals) can be used for QDC Noise Category 1 and glazing with minimum Rw 32 (6.38mm
laminate glass with acoustic seals) can be used for Noise Category 2.

Note: As there are currently no plans available for any proposed dwellings, all residential lots were
assessed in accordance with QDC. Once dwelling locations and plans are finalised an additional
assessment for each dwelling should be conducted to determine if QDC Noise Categories can be
further reduced.


9.2.2    Alternative Ventilation
We recommend that all locations nominated in Table 14 as QDC Noise Category 1-2 have the
provision for an alternative ventilation system similar to air-conditioning or mechanical ventilation to
allow windows and doors to be closed.




 2019253 R01A Lot 2 & 3 Myall Street, Cooroy RTN ENV.docx © Acoustic Works 2019                                     Page 24